Rogue TrooperIt follows the adventures of Rogue, a G.I. (or Genetic Infantryman, a genetically modified, blue-skinned, manufactured elite soldier) and his three comrades' search for the Traitor General. His comrades are in the form of biochips (onto which a G.I.'s entire personality is downloaded at the time of death for later retrieval) and are named Gunnar (mounted on Rogue's rifle), Bagman (on his backpack) and Helm (on his helmet). He is genetically engineered to be immune to almost all known toxins. He can submerge in strong acid unaffected, and is able to withstand a vacuum in his bare skin.

Gibbons left the strip early on, to be replaced by a succession of artists and writers who have taken the strip in several different directions over the years. Notable artists to have drawn the character include Brett Ewins, Cam Kennedy and Colin Wilson. This quest continued from 1981 until 1985, when the G.I. had his final confrontation with the traitor general and, after a brief further run set on the Planet Horst, Finley-Day ceased writing the strip. Simon Geller took over, reinventing the character as an intergalactic hitman attempting to end the war by assassinating key figures, but this new direction was dropped in 1989. John Smith wrote a 'flashback' story, "Cinnabar", set in Rogue's deserter days, before original series artist Dave Gibbons returned to write a much more radical revamp of the character.

In "The War Machine", Gibbons and artist Will Simpson created a different war, set on a different planet, starring a different Genetic Infantryman, this time called Friday. The bio-chips were dropped, and Gibbons concentrated on the politics and economics of war and the sinister nature of the genetic engineering involved. The story was a success. A new ongoing series featuring Friday followed, written by American writer Michael Fleisher, but this was less successful[citation needed]. In Fleisher's final story, "Scavenger of Souls", the bio-chips are reintroduced via an alien 'soul collector'.